About: http://webisa.webdatacommons.org/56928738

Property	Value
http://www.w3.org/1999/02/22-rdf-syntax-ns#type	http://www.w3.org/ns/prov#Entity
http://www.w3.org/ns/prov#value	Although nitrogen is its principal component, it also contains other gases, such as oxygen, carbon dioxide, ozone, and water vapor.
http://www.w3.org/ns/prov#wasQuotedFrom	docstoc.com